/* ==========================================================================
   PayVoice Reusable UI Components & Native Top-Layer Dialog System
   ========================================================================== */

@layer components {
  /* ------------------------------------------------------------------------
     Elevated Institutional Cards & Metric Tiles
     ------------------------------------------------------------------------ */
  .card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    container-type: inline-size;
    transition: border-color var(--transition-fast), box-shadow var(--transition-base);
  }

  .card-interactive:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-card-hover);
  }

  .card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    margin-block-end: var(--space-4);
    flex-wrap: wrap;
  }

  .card-title {
    font-size: var(--text-md);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
  }

  .card-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-block-start: 0.1875rem;
  }

  .metric-card {
    position: relative;
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-base),
      border-color var(--transition-fast);
  }

  .metric-card::before {
    content: "";
    position: absolute;
    inset-block-start: 0;
    inset-inline: 0;
    block-size: 2px;
    background: linear-gradient(
      90deg,
      color-mix(var(--in-oklab) var(--color-brand-primary) 70%, transparent),
      color-mix(var(--in-oklab) var(--color-brand-accent) 40%, transparent)
    );
    opacity: 0.55;
  }

  .metric-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-card-hover);
  }

  .metric-top,
  .metric-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
  }

  .metric-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
  }

  .metric-icon {
    inline-size: 2rem;
    block-size: 2rem;
    border-radius: var(--radius-md);
    background-color: var(--color-brand-soft);
    color: var(--color-brand-primary);
    display: grid;
    place-items: center;
    flex-shrink: 0;
  }

  .metric-value {
    font-size: var(--text-2xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    font-variant-numeric: tabular-nums;
    line-height: 1.15;
  }

  .metric-sub,
  .metric-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-block-start: 0.125rem;
  }

  .metric-delta {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-weight: 600;
    color: var(--color-success);
  }

  /* ------------------------------------------------------------------------
     Buttons (min-block-size instead of fixed height to allow text zoom)
     ------------------------------------------------------------------------ */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4375rem;
    min-block-size: 2.375rem;
    padding: 0.5rem 0.9375rem;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.25;
    border: 1px solid transparent;
    transition: background-color var(--transition-fast), border-color var(--transition-fast),
      color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
  }

  .btn:active:not(:disabled) {
    transform: scale(0.985);
  }

  .btn:disabled {
    opacity: 0.52;
  }

  .btn-primary {
    background-color: var(--color-brand-btn-bg);
    color: var(--color-text-inverse);
    box-shadow: 0 1px 2px rgba(7, 13, 25, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  }

  .btn-primary:hover:not(:disabled) {
    background-color: var(--color-brand-btn-hover);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 12px -2px color-mix(var(--in-oklab) var(--color-brand-btn-bg) 42%, transparent);
  }

  .btn-secondary {
    background-color: var(--color-bg-surface);
    color: var(--color-text-primary);
    border-color: var(--color-border);
    box-shadow: var(--shadow-xs);
  }

  .btn-secondary:hover:not(:disabled) {
    background-color: var(--color-bg-subtle);
    border-color: var(--color-border-strong);
  }

  .btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
  }

  .btn-ghost:hover:not(:disabled) {
    background-color: var(--color-bg-subtle);
    color: var(--color-text-primary);
  }

  .btn-danger {
    background-color: var(--color-danger);
    color: var(--color-text-inverse);
  }

  .btn-danger:hover:not(:disabled) {
    filter: brightness(0.92);
  }

  .btn-success {
    background-color: var(--color-success);
    color: var(--color-text-inverse);
  }

  .btn-success:hover:not(:disabled) {
    filter: brightness(0.92);
  }

  .btn-sm {
    min-block-size: 1.9375rem;
    padding: 0.3125rem 0.6875rem;
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
  }

  .btn-lg {
    min-block-size: 2.75rem;
    padding: 0.625rem 1.25rem;
    font-size: var(--text-base);
    border-radius: var(--radius-md);
  }

  .btn-navy {
    background-color: var(--color-brand-navy);
    color: #ffffff;
    border-color: rgba(148, 163, 184, 0.24);
    box-shadow: var(--shadow-xs);
  }

  .btn-navy:hover:not(:disabled) {
    filter: brightness(1.18);
  }

  /* ------------------------------------------------------------------------
     Semantic Badges & Alerts (Color + Text/Border Pairing)
     ------------------------------------------------------------------------ */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3125rem;
    padding: 0.1875rem 0.5625rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    line-height: 1.35;
    border: 1px solid transparent;
    white-space: nowrap;
  }

  .badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border-color: var(--color-success-border);
  }

  .badge-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
    border-color: var(--color-warning-border);
  }

  .badge-danger,
  .badge-error {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: var(--color-danger-border);
  }

  .badge-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
    border-color: var(--color-info-border);
  }

  .badge-neutral {
    background-color: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    border-color: var(--color-border);
  }

  .badge-purple {
    background-color: color-mix(var(--in-oklab) #6366f1 12%, transparent);
    color: #4f46e5;
    border-color: color-mix(var(--in-oklab) #6366f1 28%, transparent);
  }

  [data-theme="dark"] .badge-purple,
  :root:has(> head > meta[name="color-scheme"][content="dark"]) .badge-purple {
    color: #a5b4fc;
  }

  .alert {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    border-inline-start-width: 4px;
    font-size: var(--text-sm);
  }

  .alert-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-inline-size: 0;
  }

  .alert-title {
    font-weight: 700;
    color: var(--color-text-primary);
  }

  .alert-danger,
  .alert-error {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    border-inline-start-color: var(--color-danger);
    color: var(--color-danger);
  }

  .alert-warning {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning-border);
    border-inline-start-color: var(--color-warning);
    color: var(--color-warning);
  }

  .alert-info {
    background-color: var(--color-info-bg);
    border-color: var(--color-info-border);
    border-inline-start-color: var(--color-info);
    color: var(--color-info);
  }

  .alert-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success-border);
    border-inline-start-color: var(--color-success);
    color: var(--color-success);
  }

  /* ------------------------------------------------------------------------
     Forms, Filters, Segmented Tabs & Pagination
     ------------------------------------------------------------------------ */
  .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
  }

  .form-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
  }

  .form-hint {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
  }

  .form-error {
    font-size: var(--text-xs);
    color: var(--color-danger);
    font-weight: 500;
  }

  .form-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-block-end: var(--space-4);
  }

  .toolbar-left,
  .toolbar-right,
  .toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
  }

  .settings-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .search-input-wrap {
    position: relative;
    min-inline-size: 14rem;
    flex: 1 1 14rem;
  }

  .search-input-wrap svg {
    position: absolute;
    inset-inline-start: 0.75rem;
    inset-block-start: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
  }

  .search-input-wrap input {
    inline-size: 100%;
    min-block-size: 2.375rem;
    padding-inline-start: 2.25rem;
  }

  .filter-select {
    min-block-size: 2.375rem;
    padding: 0.4375rem 0.75rem;
  }

  .segmented-control {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem;
    background-color: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    gap: 0.25rem;
    flex-wrap: wrap;
  }

  .seg-btn {
    padding: 0.375rem 0.75rem;
    min-block-size: 1.9375rem;
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: background-color var(--transition-fast), color var(--transition-fast),
      box-shadow var(--transition-fast);
  }

  .seg-btn:hover {
    color: var(--color-text-primary);
  }

  .seg-btn.active {
    background-color: var(--color-bg-surface);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-xs);
  }

  .pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding-block-start: var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    flex-wrap: wrap;
  }

  .pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  /* Toggle Switch */
  .switch-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: 0.75rem;
    border-block-end: 1px solid var(--color-border-subtle);
  }

  .switch-row:last-child {
    border-block-end: none;
  }

  .switch-meta strong {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
  }

  .switch-meta span {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-block-start: 0.125rem;
  }

  .switch {
    position: relative;
    display: inline-block;
    inline-size: 2.75rem;
    block-size: 1.5rem;
    flex-shrink: 0;
  }

  .switch input {
    opacity: 0;
    inline-size: 0;
    block-size: 0;
  }

  .switch-slider {
    position: absolute;
    inset: 0;
    background-color: var(--color-border-strong);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-fast);
  }

  .switch-slider::before {
    content: "";
    position: absolute;
    inset-block-start: 0.1875rem;
    inset-inline-start: 0.1875rem;
    inline-size: 1.125rem;
    block-size: 1.125rem;
    border-radius: var(--radius-full);
    background-color: #ffffff;
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-fast);
  }

  .switch input:checked + .switch-slider {
    background-color: var(--color-brand-btn-bg);
  }

  .switch input:checked + .switch-slider::before {
    transform: translateX(1.25rem);
  }

  .switch input:focus-visible + .switch-slider {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
  }

  /* ------------------------------------------------------------------------
     Native Top-Layer <dialog> Modal with @starting-style & allow-discrete
     ------------------------------------------------------------------------ */
  dialog.modal-dialog {
    margin: auto;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--color-text-primary);
    max-inline-size: calc(100% - 2rem);
    max-block-size: calc(100dvh - 2rem);
    overflow: visible;
    display: none;
  }

  dialog.modal-dialog[open] {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  dialog.modal-dialog:modal {
    overscroll-behavior: contain;
  }

  dialog.modal-dialog::backdrop {
    overflow: hidden;
    overscroll-behavior: contain;
    background-color: rgba(4, 9, 20, 0.58);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    transition:
      opacity 220ms var(--ease-standard),
      display 220ms allow-discrete,
      overlay 220ms allow-discrete;
  }

  dialog.modal-dialog[open]:not([data-closing])::backdrop {
    opacity: 1;
  }

  @starting-style {
    dialog.modal-dialog[open]:not([data-closing])::backdrop {
      opacity: 0;
    }
  }

  dialog.modal-dialog .modal-panel {
    inline-size: 100%;
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    max-block-size: calc(100dvh - 2.5rem);
    overflow: hidden;
    opacity: 0;
    transform: translateY(10px) scale(0.975);
    transition:
      opacity 220ms var(--ease-standard),
      transform 220ms var(--ease-standard),
      display 220ms allow-discrete,
      overlay 220ms allow-discrete;
  }

  dialog.modal-dialog[open]:not([data-closing]) .modal-panel {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  @starting-style {
    dialog.modal-dialog[open]:not([data-closing]) .modal-panel {
      opacity: 0;
      transform: translateY(10px) scale(0.975);
    }
  }

  .modal-sm {
    inline-size: min(27.5rem, 94vw);
  }

  .modal-md {
    inline-size: min(36.25rem, 94vw);
  }

  .modal-lg {
    inline-size: min(48.75rem, 95vw);
  }

  .modal-xl {
    inline-size: min(60rem, 96vw);
  }

  .modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-block-end: 1px solid var(--color-border);
  }

  .modal-header h2 {
    font-size: var(--text-md);
    font-weight: 700;
  }

  .modal-close {
    inline-size: 2rem;
    block-size: 2rem;
    border-radius: var(--radius-md);
    display: grid;
    place-items: center;
    color: var(--color-text-muted);
    transition: background-color var(--transition-fast), color var(--transition-fast);
  }

  .modal-close:hover {
    background-color: var(--color-bg-subtle);
    color: var(--color-text-primary);
  }

  .modal-body {
    padding: var(--space-5);
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-5);
    border-block-start: 1px solid var(--color-border);
    background-color: var(--color-bg-subtle);
    flex-wrap: wrap;
  }

  @media (prefers-reduced-motion: reduce) {
    dialog.modal-dialog::backdrop,
    dialog.modal-dialog .modal-panel {
      transition: none;
    }
  }

  /* ------------------------------------------------------------------------
     Toasts & Notification Popover
     ------------------------------------------------------------------------ */
  .toast-container {
    position: fixed;
    inset-block-end: var(--space-5);
    inset-inline-end: var(--space-5);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-inline-size: min(23.75rem, calc(100vw - 2rem));
  }

  .toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: 0.8125rem 1rem;
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-inline-start-width: 4px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--text-sm);
    animation: toast-in 220ms var(--ease-standard);
  }

  .toast-success {
    border-inline-start-color: var(--color-success);
  }

  .toast-error {
    border-inline-start-color: var(--color-danger);
  }

  .toast-info {
    border-inline-start-color: var(--color-info);
  }

  .toast-warning {
    border-inline-start-color: var(--color-warning);
  }

  .toast-body {
    flex: 1;
    min-inline-size: 0;
  }

  .toast-title {
    font-weight: 700;
    font-size: var(--text-xs);
    color: var(--color-text-primary);
  }

  .toast-message {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    margin-block-start: 0.125rem;
  }

  .toast-close {
    margin-inline-start: auto;
    color: var(--color-text-muted);
    padding: 0.125rem;
    border-radius: var(--radius-sm);
  }

  .toast-close:hover {
    color: var(--color-text-primary);
    background-color: var(--color-bg-subtle);
  }

  @keyframes toast-in {
    from {
      opacity: 0;
      transform: translateY(8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .popover-wrap {
    position: relative;
  }

  .popover-panel {
    position: absolute;
    inset-block-start: calc(100% + 0.5rem);
    inset-inline-end: 0;
    inline-size: min(21.25rem, calc(100vw - 2rem));
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-popover);
    display: none;
    flex-direction: column;
    overflow: hidden;
  }

  .popover-panel.open {
    display: flex;
  }

  .popover-head {
    padding: 0.75rem 1rem;
    border-block-end: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-sm);
    font-weight: 700;
  }

  .popover-list {
    max-block-size: 18.75rem;
    overflow-y: auto;
  }

  .popover-item,
  .notif-item {
    padding: 0.75rem 1rem;
    border-block-end: 1px solid var(--color-border-subtle);
    font-size: var(--text-xs);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .popover-item:last-child,
  .notif-item:last-child {
    border-block-end: none;
  }

  .popover-item strong,
  .notif-item strong {
    color: var(--color-text-primary);
    font-weight: 600;
  }

  .popover-item span,
  .notif-item span {
    color: var(--color-text-secondary);
  }

  .popover-item time,
  .notif-item time {
    color: var(--color-text-muted);
    font-size: var(--text-2xs);
  }

  /* ------------------------------------------------------------------------
     Skeletons, Empty States & Spinners
     ------------------------------------------------------------------------ */
  .skeleton {
    border-radius: var(--radius-md);
    background: linear-gradient(
      90deg,
      var(--color-bg-subtle) 25%,
      var(--color-bg-surface-hover) 50%,
      var(--color-bg-subtle) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite linear;
  }

  .skeleton-title {
    block-size: 1.75rem;
    inline-size: 15rem;
    margin-block-end: var(--space-3);
  }

  .skeleton-block {
    block-size: 7.5rem;
    inline-size: 100%;
  }

  @keyframes shimmer {
    from {
      background-position: 200% 0;
    }
    to {
      background-position: -200% 0;
    }
  }

  .empty-state {
    text-align: center;
    padding: 3rem var(--space-4);
    color: var(--color-text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
  }

  .spinner {
    inline-size: 1rem;
    block-size: 1rem;
    border: 2px solid color-mix(var(--in-oklab) currentColor 25%, transparent);
    border-top-color: currentColor;
    border-radius: var(--radius-full);
    animation: spin 0.7s linear infinite;
  }

  @keyframes spin {
    to {
      transform: rotate(360deg);
    }
  }

  @media (max-width: 640px) {
    .form-grid-2 {
      grid-template-columns: minmax(0, 1fr);
    }
  }
}